/*
 * Copyright (C) 2008 Universidade Federal de Campina Grande
 *  
 * This file is part of OurGrid. 
 *
 * OurGrid is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free 
 * Software Foundation, either version 3 of the License, or (at your option) 
 * any later version. 
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT 
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package org.ourgrid.broker.communication.dao;

import java.util.HashMap;
import java.util.Map;

import org.ourgrid.common.interfaces.AccountingAggregator;

import br.edu.ufcg.lsd.commune.identification.ServiceID;

/**
 * Maintains information about the current 
 * workers providers of this Broker.
 * 
 */
public class AccountingAggregatorDAO {

	private static AccountingAggregatorDAO instance;
	
	private final Map<ServiceID, AccountingAggregator> accountingAggregators;
	
	
	public static AccountingAggregatorDAO getInstance() {
		if (instance == null) {
			instance = new AccountingAggregatorDAO();
		}
		
		return instance;
	}
	
	
	private AccountingAggregatorDAO() {
		this.accountingAggregators = new HashMap<ServiceID, AccountingAggregator>();
	}

	
	public void addAccountingAggregator(ServiceID peerServiceID, AccountingAggregator aggregator) {
		this.accountingAggregators.put(peerServiceID, aggregator);
	}
	
	public AccountingAggregator getAccountingAgreggator(ServiceID peerServiceID) {
		return this.accountingAggregators.get(peerServiceID);
	}
}
